From: Stefan Agner <stefan@agner.ch>
Date: Sat, 11 Aug 2018 09:12:19 +0000 (+0200)
Subject: iio: adc: max9611: explicitly cast gain_selectors
X-Git-Tag: v4.20-rc1~72^2~380^2~45
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=b1ec0802503820ccbc894aadfd2a44da20232f5e;p=linux-2.6-block.git

iio: adc: max9611: explicitly cast gain_selectors

After finding a reasonable gain, the function converts the configured
gain to a gain configuration option selector enum max9611_csa_gain.
Make the conversion clearly visible by using an explicit cast. This
also avoids a warning seen with clang:
  drivers/iio/adc/max9611.c:292:16: warning: implicit conversion from
      enumeration type 'enum max9611_conf_ids' to different enumeration
      type 'enum max9611_csa_gain' [-Wenum-conversion]
                        *csa_gain = gain_selectors[i];
                                  ~ ^~~~~~~~~~~~~~~~~

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/max9611.c b/drivers/iio/adc/max9611.c
index 0538ff8c4ac1..643a4e66eb80 100644
--- a/drivers/iio/adc/max9611.c
+++ b/drivers/iio/adc/max9611.c
@@ -289,7 +289,7 @@ static int max9611_read_csa_voltage(struct max9611_dev *max9611,
 			return ret;
 
 		if (*adc_raw > 0) {
-			*csa_gain = gain_selectors[i];
+			*csa_gain = (enum max9611_csa_gain)gain_selectors[i];
 			return 0;
 		}
 	}